I don’t do this for many things but i do use it sometimes

I’ve used care credit because a single emergency vet bill can be pricey and while I could empty my savings that’s not the best idea. So I just pay it off within the promotional period. Worse case scenario I am in a position to secure a traditional personal loan to completely pay off that balance at a more favorable interest rate.

I used a 0% intro rate for a European vacation once and it was great paying that off over a year.

That being said I wouldn’t finance groceries or Christmas shopping. That’s going a bit far